libctru v2.4.0

• Added full support for all QTM services, with extensive documentation and technical details in qtm.h and qtmc.h (breaking change); examples have been updated for this
• Added MCUHWC_SetInfoLedPattern
• Added ndspChnGetFormat
• Fixed PTMSYSM_CheckNew3DS
• Fixed NDMU_QueryStatus
• Fixed a few service commands improperly deserializing boolean output
• Fixed documentation of ACU_GetWifiStatus and ACU_SetAllowApType
• Fixed shaderInstanceInit to initialize all fields
• Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.